checkstyle.xml

<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
  "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
  "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">

<module name="Checker">
    <module name="SuppressionCommentFilter">
    </module>

<!--    <module name="NewlineAtEndOfFile"/>-->

    <module name="FileLength">
        <property name="max" value="1500"/>
    </module>

    <module name="TreeWalker">
        <module name="FileContentsHolder"/>
        <module name="IllegalImport"/>
        <module name="RedundantImport"/>
        <module name="UnusedImports" />



        <module name="LocalFinalVariableName" />
        <module name="LocalVariableName" />
        <module name="PackageName">
            <property name="format" value="^[a-z]+(\.[a-z][a-z0-9]*)*$" />
            <message key="name.invalidPattern" value="PackageName  ''{0}'' should fit ''{1}''format."/>
        </module>
        <module name="StaticVariableName" />
        <module name="TypeName">
            <property name="severity" value="warning"/>
            <message key="name.invalidPattern" value="name ''{0}'' should fit ''{1}''format."/>
        </module>
        <module name="MemberName" />
        <module name="MethodName" />
        <module name="ParameterName " />
        <module name="ConstantName" />

<!--        <module name="ArrayTypeStyle"/>-->
        <module name="UpperEll"/>

        <module name="LineLength">
            <property name="max" value="140" />
        </module>
        <module name="MethodLength">
            <property name="tokens" value="METHOD_DEF" />
            <property name="max" value="90" />
        </module>
        <module name="ParameterNumber">
            <property name="max" value="5" />
            <property name="ignoreOverriddenMethods" value="true"/>
            <property name="tokens" value="METHOD_DEF" />
        </module>

        <module name="MethodParamPad" />
        <module name="TypecastParenPad" />
        <module name="NoWhitespaceAfter"/>
        <module name="NoWhitespaceBefore"/>
        <module name="OperatorWrap"/>
        <module name="ParenPad"/>
        <module name="WhitespaceAfter"/>
        <module name="WhitespaceAround"/>

        <module name="ModifierOrder"/>
        <module name="RedundantModifier"/>

        <module name="AvoidNestedBlocks"/>
        <module name="EmptyBlock"/>
        <module name="LeftCurly"/>
        <module name="NeedBraces"/>
        <module name="RightCurly"/>

        <module name="EmptyStatement"/>
        <module name="EqualsHashCode"/>
        <module name="HiddenField">
            <property name="tokens" value="VARIABLE_DEF"/>
        </module>
        <module name="InnerAssignment"/>
        <module name="MissingSwitchDefault"/>
        <module name="SimplifyBooleanExpression"/>
        <module name="SimplifyBooleanReturn"/>

        <module name="FinalClass"/>
        <module name="InterfaceIsType"/>
        <module name="VisibilityModifier">
            <property name="packageAllowed" value="true"/>
            <property name="protectedAllowed" value="true"/>
        </module>

        <module name="StringLiteralEquality"/>
        <module name="NestedForDepth">
            <property name="max" value="2"/>
        </module>
        <module name="NestedIfDepth">
            <property name="max" value="3"/>
        </module>
        <module name="ReturnCount">
            <property name="max" value="6"/>
        </module>
        <module name="NestedTryDepth ">
            <property name="max" value="4"/>
        </module>
<!--        <module name="SuperClone" />-->
        <module name="SuperFinalize" />

    </module>
</module>